Stack-based buffer overflow in the krb5_klog_syslog function in the kadm5 library, as…
Priority MEDIUM 51CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
Stack-based buffer overflow in the krb5_klog_syslog function in the kadm5 library, as used by the Kerberos administration daemon (kadmind) and Key Distribution Center (KDC), in MIT krb5 before 1.6.1 allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via crafted arguments, possibly involving certain format string specifiers.
Why it matters now
EPSS 0.10401 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* | before 1.6.1 | Vulnerable | moos-ivp |
| cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:* | 3.1 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:5.10:*:*:*:*:*:*:* | 5.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* | 6.06 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:* | 6.10 | Vulnerable | Canonical |
- cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* Versions before 1.6.1 Vulnerable ·moos-ivp
- cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:5.10:*:*:*:*:*:*:* Versions 5.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* Versions 6.06 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:* Versions 6.10 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2007:0095 Released 2007-04-03 · Red Hat rating Criticalkrb5 security update
- Red Hat Desktop version 3 krb5-1.2.7-61, krb5-devel-1.2.7-61, krb5-devel-1.2.7-61.i386 +6
- Red Hat Enterprise Linux (v. 5 server) krb5-1.5-23, krb5-devel-1.5-23, krb5-devel-1.5-23.i386 +14
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1 krb5-1.2.2-44, krb5-devel-1.2.2-44.i386, krb5-devel-1.2.2-44.ia64 +6
- Red Hat Enterprise Linux AS version 3 krb5-1.2.7-61, krb5-devel-1.2.7-61, krb5-devel-1.2.7-61.i386 +14
- Red Hat Enterprise Linux AS version 4 krb5-1.3.4-46, krb5-devel-1.3.4-46, krb5-devel-1.3.4-46.i386 +14
- Red Hat Enterprise Linux Desktop (v. 5 client) krb5-1.5-23, krb5-libs-1.5-23, krb5-libs-1.5-23.i386 +2
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) krb5-1.5-23, krb5-devel-1.5-23, krb5-devel-1.5-23.i386 +2
- Red Hat Enterprise Linux Desktop version 4 krb5-1.3.4-46, krb5-devel-1.3.4-46, krb5-devel-1.3.4-46.i386 +6
- Red Hat Enterprise Linux ES version 2.1 krb5-1.2.2-44, krb5-devel-1.2.2-44.i386, krb5-libs-1.2.2-44.i386 +2
- Red Hat Enterprise Linux ES version 3 krb5-1.2.7-61, krb5-devel-1.2.7-61, krb5-devel-1.2.7-61.i386 +10
- Red Hat Enterprise Linux ES version 4 krb5-1.3.4-46, krb5-devel-1.3.4-46, krb5-devel-1.3.4-46.i386 +10
- Red Hat Enterprise Linux WS version 2.1 krb5-1.2.2-44, krb5-devel-1.2.2-44.i386, krb5-libs-1.2.2-44.i386 +2
- Red Hat Enterprise Linux WS version 3 krb5-1.2.7-61, krb5-devel-1.2.7-61, krb5-devel-1.2.7-61.i386 +10
- Red Hat Enterprise Linux WS version 4 krb5-1.3.4-46, krb5-devel-1.3.4-46, krb5-devel-1.3.4-46.i386 +10
- Red Hat Linux Advanced Workstation 2.1 krb5-1.2.2-44, krb5-devel-1.2.2-44.ia64, krb5-libs-1.2.2-44.ia64 +2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2007:0095 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2007:0095 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2007:0095 |
Timeline
- 2026-10-02 Threatist record created from CVE-2007-0957
- 2026-10-03 Alias added: GHSA-qhvp-f78p-g96p
References
Advisory 16
Sources
- CVE-2007-0957 · CVE Program
- CVE-2007-0957 · NVD
- FIRST EPSS
- GHSA-qhvp-f78p-g96p · GitHub Advisory Database · CC BY 4.0
- CVE-2007-0957 · Red Hat security data · CC BY 4.0
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